The High-Temperature Wear and Oxidation Behavior of CrC-Based HVOF Coatings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00508699" target="_blank" >RIV/61389021:_____/18:00508699 - isvavai.cz</a>

Alternative codes found

RIV/47718684:_____/18:N0000016 RIV/49777513:23640/18:43951178

Result on the web

<a href="https://link.springer.com/article/10.1007%2Fs11666-017-0637-3" target="_blank" >https://link.springer.com/article/10.1007%2Fs11666-017-0637-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11666-017-0637-3" target="_blank" >10.1007/s11666-017-0637-3</a>

Result language

angličtina

Original language name

The High-Temperature Wear and Oxidation Behavior of CrC-Based HVOF Coatings

Original language description

Three commercially available chromium carbide-based powders with different kinds of matrix (Cr3C2-25%NiCr, Cr3C2-25%CoNiCrAlY and Cr3C2-50%NiCrMoNb) were deposited by an HVOF JP-5000 spraying gun, evaluated and compared. The influence of heat treatment on the microstructure and properties, as well as the oxidation resistance in a hot steam environment (p = 24 MPa, T = 609 A degrees C), was evaluated by SEM and XRD with respect to their potential application in the steam power industry. The sliding wear resistance measured at room and elevated (T = 600 A degrees C) temperatures according to ASTM G-133. For all three kinds of chromium carbide-based coatings, the precipitation of secondary carbides from the supersaturated matrix was observed during the heat treatment. For Cr3C2-25%NiCr coating annealed in hot steam environment as well as for Cr3C2-25%CoNiCrAlY coating in both environments, the inner carbide oxidation was recorded. The sliding wear resistance was found equal at room temperature, regardless of the matrix composition and content, while at elevated temperatures, the higher wear was measured, varying in dependence on the matrix composition and content. The chromium carbide-based coating with modified matrix composition Cr3C2-50%NiCrMoNb is suitable to replace the Cr3C2-25%NiCr coating in a hot steam environment to eliminate the risk of failure caused by inner carbide oxidation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Thermal Spray Technology

ISSN

1059-9630

e-ISSN

—

Volume of the periodical

27

Issue of the periodical within the volume

1-2

Country of publishing house

US - UNITED STATES

Number of pages

17

Pages from-to

179-195

UT code for WoS article

000419001600017

EID of the result in the Scopus database

2-s2.0-85029431754